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Select the system and features that you are looking for in a Heat-Timer product
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DIGI-SPAN® HWE-Elite & SEQ-3 Series

The perfect energy saving outdoor reset controls for residential and light commercial hot water outdoor reset heating applications. All of the DIGI-Elite Series controls come with a digital display, adjustable reset ratio, offset, and outdoor cutoff.


HWE-SS Single Stage – Hot water Outdoor Reset energy saving boiler control with multiple domestic hot water priority options for single stage boiler applications. Replaces the HWM 100


HWE-MOV – Provides Hot water Outdoor Reset energy saving motorized valve control. It modulates a 3 or 4 way motorized valve. Replaces the HWM 200


SEQ-3 – This control provides Hot water Outdoor Reset energy saving control for multiple boiler applications. Controls up to 3 Stages (3 on/off, 2 on/off + System pump, 1 lo/hi + System Pump, 1 on/off + System + DHW Pump). Replaces HWM 550 and HWE-Multi Stage.




The TSC-Elite (two-stage set point control) can measure and control temperature, pressure, vacuum or humidity and provides two Normally Open outputs. These outputs can be field configured for heating, cooling, or heating/cooling (Change-Over Control (COC)) applications.




Is an outdoor reset hybrid control. It operates condensing and non-condensing boilers in a Hydronic heating application with or without Domestic Hot Water Priority to achieve the highest efficiency. It operates both modulating and staging boilers. The Mini-MOD-CNC sequences up to 4 boilers for Hydronic Applications. In addition, up to two Mini-Extension can be added, each connecting to 6 additional boilers, to increase the total number of operated boilers to 16.



Platinum: HWRQ (Hot Water)

The HWRQ Platinum is a multiple hot water boiler Outdoor Reset heating control with built-in Domestic Hot Water Priority that offers tremendous fuel savings. It controls up to 8 boiler Stages (8 on/off, 4 2-Stage, 2 3 Stage, or 2 4-Stage boilers)and up to 24 additional stages can be added using multiple Extension Modules.

See Remote Communication, Internet Communication, BACnet communication, or Modbus Communication add on.



Platinum: MPCQ (Steam)

The MPCQ Platinum is a steam outdoor reset boiler heating control that varies the duration of steam flow into the buildings radiation in accordance with changes in outdoor temperature by controlling up to 8 boiler Stages (8 on/off or 4 lo/hi). Up to 24 additional stages can be added using up to three additional Extension Panels.

See Remote Communication, Internet Communication, BACnet communication, or Modbus Communication add on.



SQ-Elite Series

The SQ-Elite is the perfect control whenever multiple stages are required for heating, cooling, pressure, or humidity applications. It will automatically activate as many stages needed to maintain precise set point control using P.I.D logic or an Over-Size System concept. In addition, it can be set to a specific set point or can use Outdoor Reset. The SQ-Elite is equipped with DHW Pump (-8T models only), and combustion air damper relays. In addition, it provides an advanced logic to protect boilers from cold returns (SQ-Elite-8T and SQ-Elite-MV models only).

The SQ-Elite-8T and SQ-Elite-MV can provide an additional output for each boiler for a boiler pump or boiler valve, which can remain active for an adjustable time delay.